"Synoptic History of Inventions" Exhibit, United States National Museum
Smithsonian Archives

"Synoptic History of Inventions" Exhibit, United States National Museum

United States National Museum Photographic Laboratory · 1920

Cyanotypes (photographic prints); 8 x 10;
Smithsonian Institution Archives
CC0 — Public Domain
Smithsonian Archives

Archives No. SIA2007-0128

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